Mechanical Systems Modifications at 31 West 27th Street, Manhattan
31 WEST 27 STREET, MANHATTAN, 10001 · Midtown South-Flatiron-Union Square
What was permitted
This permit details mechanical system modifications planned for the 11th floor of a building located at 31 West 27th Street in Manhattan's Midtown South-Flatiron-Union Square area. Such work often involves HVAC, electrical, or plumbing system upgrades within commercial or residential spaces.
Issued on April 30, 2026, the project has an estimated cost of $230,054.86, with CORE FOUR CONSTRUCTION IN acting as the general contractor. This significant investment reflects the complexity of updating building infrastructure.
Mechanical system upgrades on the 11th floor at 31 W 27th St were permitted for $230,054.86, highlighting the substantial cost of modernizing building infrastructure in Midtown South.
What it cost
Issued
April 30, 2026
Expires
November 5, 2026
License
General Contractor
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Filed by CORE FOUR CONSTRUCTION IN · 11 permits across 4 neighborhoods
View the official permit record
Tracking number, work description, cost, and dates
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View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | 538522701 |
| Work Permit # | M01286425-I1-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | Mechanical modifications taking place on 11th floor as per plans filed herewith. No change in use, egress or occupancy. |
| Floor / Unit | Floor Number(s) 11 through 11 |
| Estimated Cost | $230,055 |
| Approved | October 6, 2025 |
| Issued | April 30, 2026 |
| Expires | November 5, 2026 |
| BBL | — |
| BIN | — |
Property Owner
Not Applicable
Jasmine Czarnecki